Update news feed location to be consistent with Allura version of SourceForge.
Update news feed location to be consistent with Allura version
of SourceForge.

N.B. This change does not deal with the remaining news sidebar issues
mentioned on list (too many news items, broken rendering of each
webpage with the sidebar, old version of simplepie software).


svn path=/trunk/; revision=12528

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot